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Sybase IQ 12.6常用函數

1

aggregate_func_name
2

: "sum" | "求和"
3

| "avg" | "求平均數"
4

| "max" | "求最大值"
5

| "min" | "求最小值"
6

| "count" | "求記錄數"
7

;
8

9

number_function
10

: "abs" | "取絕對值"
11

| "acos" | "求值的余弦角"
12

| "asin" | "求值的正弦角"
13

| "atan" | "求值的正切角"
14

| "atin2" | "求值的正弦和余弦角"
15

| "ceiling" | "求五入后的整數"
16

| "cos" | "求角的余弦值"
17

| "cot" | "求角的余切值"
18

| "degrees" | "求弧度數的角大小"
19

| "exp" | "求冪值"
20

| "floor" | "求四舍后的整數"
21

| "log" | "求自然對數"
22

| "log10" | "求10為底的對數"
23

| "mod" | "求模"
24

| "pi" | "求PI"
25

| "power" | "求數字的次冪值"
26

| "radians" | "求度數角的弧度"
27

| "rand" | "求0和1間的隨機數"
28

| "round" | "格式化數值"
29

| "sign" | "求值的符號"
30

| "sin" | "求角的正弦值"
31

| "sqrt" | "求平方根"
32

| "tan" | "求角的正切值"
33

;
34

35

string_function
36

: "ascii" | "求第一個字符的ASCII碼"
37

| "char" | "求等值的字符"
38

| "char_length" | "求字符串的長度"
39

| "charindex" | "存在于"
40

| "difference" | "求兩個串的差值"
41

| "lcase"
42

| "left" | "字符串左截"
43

| "length" | "求字符串總長度"
44

| "lower" | "將字符串轉為小寫"
45

| "ltrim" | "去掉左空格"
46

| "patindex" | "求第一次出現位置"
47

| "replace" | "字符串替換"
48

| "right" | "字符串左截"
49

| "rtrim" | "去掉右空格"
50

| "str" | "數值轉字符串"
51

| "substring" | "字符串截取"
52

| "upper" | "將字符串轉為大寫"
53

;
54

55

datetime_function
56

: "dateformat" | "格式化日期"
57

| "datename" | "求日期的分量值"
58

| "datepart" | "求日期的分量整數值"
59

| "datetime" | "轉為日期時間"
60

| "date"
61

| "dayname"
62

| "days"
63

| "day"
64

| "dow"
65

| "hours"
66

| "hour"
67

| "minutes"
68

| "minute"
69

| "monthname"
70

| "months"
71

| "month"
72

| "now" | "取當前日期時間"
73

| "quarter"
74

| "seconds"
75

| "second"
76

| "today" | "取當前日期"
77

| "weeks"
78

| "week"
79

| "years"
80

| "year"
81

| "getdate" | "求當前日期時間"
82

| "dateadd" | "日期相加"
83

| "datediff" | "日期相減"
84

;
85

86

conversion_function
87

: "convert" | "字符轉為日期"
88

| "hextoint" | "十六進制轉為整數"
89

| "inttohex" | "整數轉為十六進制"
90

| "isdate" | "是日期型"
91

| "isnumeric" | "是數值型"
92

;
93

94

system_function
95

: "suser_id"
96

| "suser_name"
97

| "user_id"
98

| "user_name"
99

;

posted on 2007-05-16 14:10 LORD BLOG 閱讀(1719) 評論(0) 編輯收藏所屬分類: 數據庫相關

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